NCAGS & AWNIS
Naval Cooperation and Guidance for Shipping
Maritime trade is of fundamental strategic interest to nations and their economic well-being depends on freedom of movement on the seas. Military operations at sea will frequently involve, or have some impact, on merchant shipping and likewise merchant shipping may affect military operations.
In order to both reduce conflict of interest between military and merchant shipping, and to enhance safety and security on sea, NATO developed and implemented the Naval Cooperation and Guidance for Shipping (NCAGS) concept.
NCAGS provides the interface between military operations and merchant shipping. This interface involves the provision of military cooperation, guidance, advice, and assistance to merchant shipping. NCAGS is employed to enhance the safety of participating merchant ships in the operations area while supporting military objectives.
NATO has released a non-classified publication which covers the relationship with civilian shipping. This publication can be downloaded from below link.
Allied Worldwide Navigational Information System
AWNIS collates, coordinates and communicates navigational safety and security information to merchant shipping and military authorities within an operational area. As this information relates to the general maritime community, it works almost exclusively through the existing Worldwide Navigational Warning Service (WWNWS) architecture. Responsible for both classified and unclassified information, AWNIS delivers assurance to military commanders and merchant mariners against the additional risks to safety and security of Navigation that are associated with maritime operations.
NCAGS web site
NATO maintains its own NCAGS website where NCAGS personnel can gain access to publications, news, calendars etc. This is a password-protected site for the NCAGS community only. You can request access by e-mail
and log on to it here